Summerville, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Summerville, a town in Union County, Oregon.
Overnight
44°F
Areas Of Smoke
Areas of smoke. Clear. Low around 44, with temperatures rising to around 46 overnight. North wind around 6 mph.
7-day forecast for Summerville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 44°F | Areas Of Smoke | 6 mph N | 0% |
| Tuesday | 88°F | Areas Of Smoke | 5 to 12 mph N | 0% |
| Tuesday Night | 48°F | Areas Of Smoke | 1 to 12 mph N | 0% |
| Wednesday | 96°F | Areas Of Smoke | 0 to 5 mph NE | 0% |
| Wednesday Night | 52°F | Areas Of Smoke then Clear | 0 to 6 mph W | 0% |
| Thursday | 101°F | Sunny | 0 to 7 mph SW | 0% |
| Thursday Night | 57°F | Clear | 2 to 7 mph W | 0% |
| Friday | 97°F | Sunny | 2 to 12 mph W | 0% |
| Friday Night | 55°F | Clear | 3 to 12 mph W | 0% |
| Saturday | 94°F | Sunny | 2 to 13 mph W | 0% |
| Saturday Night | 53°F | Mostly Clear | 2 to 13 mph W | 0% |
| Sunday | 89°F | Sunny | 2 to 12 mph W | 0% |
| Sunday Night | 50°F | Mostly Clear | 2 to 12 mph NW | 0% |
| Monday | 88°F | Sunny | 1 to 12 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Summerville (45.490, -118.004). Updated through the day.
Growing snapshot for Summerville
Last spring frost
May 24
First fall frost
Sep 18
Growing season
114 days
Hardiness zone
6b
More local growing data for Summerville: nearby ZIP 97876 weather · frost dates · planting calendar · Oregon frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Elgin, Or (5.9 mi from Summerville). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.